@InProceedings{zanzotto-moschitti:2006:TextGraphs,
  author    = {Zanzotto, Fabio Massimo  and  Moschitti, Alessandro},
  title     = {Similarity between Pairs of Co-indexed Trees for Textual Entailment Recognition},
  booktitle = {Proceedings of TextGraphs: the First Workshop on Graph Based Methods for Natural Language Processing},
  month     = {June},
  year      = {2006},
  address   = {New York City},
  publisher = {Association for Computational Linguistics},
  pages     = {33--36},
  url       = {http://www.aclweb.org/anthology/W/W06/W06-3806}
}